Recommended antennas for 70km ?

You can use 5.8Ghz

maybe ACK timing???

I would go for a MikroTik (RIC/522) 5.1-5.8Ghz Integrated Router Antenna at each end.

This will get you away from the 2.4GHz noise and give you a little bit more flexable working area with the frequencys and a lot more control over your network.

Not only with config, but also in status information about your wireless link, noise levels and a lot more.

My 5c worth

Matt

PS: Preconfigure both units, one ethernet cable to the roof and run POE (power-over-ethernet), bolt onto pole, alian. Job Job. All done.

thanks guys for these good advices

what i’v done now is changing the 2nd point from d-link+1w amp to an outdoor ALCON with 250mW built in and the same 24dbi grid antenna .. now the link seems more stable although there is a time out ping from while to while , the ping is about two digits most of the time , but no hanging up no more , now i have to tell you an important thing i didnt before , 1st point at 45m the 2nd at 12m only , as i told you i’min a middle of a city , may be thats why i have the time out some times and the high ping ??